Exhibit 10.1

Execution Version

FOURTH AMENDMENT TO AMENDED AND RESTATED REGISTRATION RIGHTS AND LOCK-UP AGREEMENT

This Fourth Amendment to Amended and Restated Registration Rights and Lock-Up Agreement (this “Amendment”), dated as of March 10, 2023, by and among Nuburu, Inc., a Delaware corporation f/k/a Tailwind Acquisition Corp. (the “Company”), and the other signatories hereto (together with the Company, the “Parties”), is to that certain Amended and Restated Registration Rights and Lock-Up Agreement, dated as of August 5, 2022 (as amended by the Amendment to Amended and Restated Registration Rights and Lock-Up Agreement dated November 22, 2022, the Second Amendment to Amended and Restated Registration Rights and Lock-Up Agreement dated January 31, 2023, and the Third Amendment to Amended and Restated Registration Rights and Lock-Up Agreement dated January 31, 2023, the “Registration Rights Agreement”), by and among the Company and the Holders (as defined therein). Capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Registration Rights Agreement.

RECITALS

WHEREAS, Section 8.12 of the Registration Rights Agreement provides that the Registration Rights Agreement may be amended following the Effective Time only by an agreement in writing signed by the Company and the Holders holding at least a majority in interest of the then-outstanding number of Registrable Securities held by all Holders (provided the Holders or their Permitted Transferees hold Registrable Securities at the time of such amendment) (the “Requisite Threshold”);

WHEREAS, the undersigned constitute the Requisite Threshold; and

WHEREAS, each of the Parties desires to amend, and does hereby amend, the Registration Rights Agreement to make such amendments as are set forth in this Amendment.

NOW, THEREFORE, in consideration of the foregoing recitals, the agreements set forth in this Amendment, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties, intending to be legally bound, hereby agree as follows:

“5.1.2 Notwithstanding the foregoing subsection 5.1.1, (i) a Holder may Transfer any shares of Converted Common Stock beneficially owned or owned of record by such Holder at any time if the sale price of the Converted Common Stock at which the Transfer occurs (x) exceeds the 10-day VWAP per share of Common Stock, and (y) exceeds $5.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like); (ii) an Anzu Holder may at any time Transfer any shares of Common Stock received by such Holder at the Effective Time as Aggregate Common Stock Merger Consideration that are beneficially owned or owned of record by such Holder if the sale price of the Common Stock at which the Transfer occurs exceeds the 10-day VWAP per share of Common Stock, (each such Transfer by an Anzu Holder pursuant to the foregoing (ii), a “Permitted Transfer”); and (iii) a CCM Holder may at any time Transfer any shares of Common Stock that are beneficially owned or owned of record by such Holder if the sale price of the Common Stock at which the Transfer occurs (x) equals or exceeds the VWAP per share of Common Stock for the previous Trading Day, and (y) exceeds $5.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like); provided, however, that any such Transfer(s) by the CCM Holder may not exceed more than 20% of the traded volume on the date of Transfer.”

[Signatures Follow]

2

IN WITNESS WHEREOF, the undersigned have caused this Amendment to be duly executed as of the date first written above.

[Signature Page to Fourth Amendment to Amended and Restated Registration Rights and Lock-Up Agreement]

[Signature Page to Fourth Amendment to Amended and Restated Registration Rights and Lock-Up Agreement]

[Signature Page to Fourth Amendment to Amended and Restated Registration Rights and Lock-Up Agreement]

[Signature Page to Fourth Amendment to Amended and Restated Registration Rights and Lock-Up Agreement]

[Signature Page to Fourth Amendment to Amended and Restated Registration Rights and Lock-Up Agreement]

[Signature Page to Fourth Amendment to Amended and Restated Registration Rights and Lock-Up Agreement]

Exhibit 10.2

Execution Version

THIRD AMENDMENT TO PREFERRED STOCK SALE OPTION AGREEMENT

This Third Amendment to Preferred Stock Sale (this “Amendment”), dated as of March 10, 2023, by and among Nuburu, Inc., a Delaware corporation f/k/a Tailwind Acquisition Corp. (the “Company”), and the other signatories hereto (together with the Company, the “Parties”), is to that certain Preferred Stock Sale Option Agreement, dated as of August 5, 2022 (as amended pursuant to the Amendment to Preferred Stock Sale Option Agreement, dated November 22, 2022, and the Second Amendment to Preferred Stock Sale Agreement, dated November 28, 2022, the “Sale Option Agreement”), by and among the Company and the Holders (as defined therein). Capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Sale Option Agreement.

RECITALS

WHEREAS, Section 8.12 of the Registration Rights Agreement, as incorporated into Section 5 of the Sale Option Agreement, provides that the Sale Option Agreement may be amended following the Effective Time only by an agreement in writing signed by the Company and the Holders holding at least a majority in interest of the then-outstanding number of Registrable Securities (as defined in the Registration Rights Agreement) held by all Holders (provided the Holders or their Permitted Transferees hold Registrable Securities at the time of such amendment) (the “Requisite Threshold”);

WHEREAS, the undersigned constitute the Requisite Threshold;

WHEREAS, the Holders, together with certain other parties, entered into a Rule 10b5-1 Sales Plan dated December 12, 2022, (the “Sales Plan”) with Tigress Financial Partners LLC (“Tigress”), pursuant to which the Holders and such other parties authorized Tigress to sell shares of Stock (as defined in the Sales Plan), subject to the conditions and limitations set forth in the Sales Plan; and

WHEREAS, each of the Parties desires to amend, and does hereby amend, the Sale Option Agreement as set forth herein.

NOW, THEREFORE, in consideration of the foregoing recitals, the agreements set forth in this Amendment, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties, intending to be legally bound, hereby agree as follows:

(a) Section 1(b) of the Sale Option Agreement is hereby amended and restated in its entirety as follows:

(b) Right to Sell. Subject to the terms and conditions of this Agreement, during each Option Period the Company shall have the right (an “Option”), but not the obligation, to cause any Holder to use up to 2/3 of the gross proceeds of Permitted Transfers made by such Holder to purchase New SPAC Series A

Preferred Stock from the Company at the then applicable Purchase Price (as defined below). An “Option Period” shall mean (i) the first through third trading day of each month, with respect to Permitted Transfers made by the Holder during the period beginning with the start of the eleventh trading day of the preceding month and continuing through the end of the preceding month, and (ii) the eleventh through thirteenth trading day of each month, with respect to Permitted Transfers made during the first ten trading days of that month.

[Signatures Follow]

2

IN WITNESS WHEREOF, the parties have caused this Amendment to be duly executed as of the date first written above.

[Signature Page to Third Amendment to Preferred Stock Sale Option Agreement]

[Signature Page to Third Amendment to Preferred Stock Sale Option Agreement]